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Gone with the wind: sequencing its type species supports inclusion of Cryptolechia in Gyalecta (Ostropales: Gyalectaceae)

Published online by Cambridge University Press:  21 August 2019

Robert LÜCKING Open the ORCID record for Robert LÜCKING [Opens in a new window] ,
Bibiana MONCADA  and
David L. HAWKSWORTH
Robert LÜCKING*
Affiliation:
Botanischer Garten und Botanisches Museum, Freie Universität Berlin, Königin-Luise-Straße 6–8, 14195 Berlin, Germany.
Bibiana MONCADA
Affiliation:
Licenciatura en Biología, Universidad Distrital Francisco José de Caldas, Cra. 4 No. 26D-54, Torre de Laboratorios, Herbario, Bogotá D.C., Colombia; Research Associate, Science & Education, The Field Museum, 1400 South Lake Shore, Chicago, IL 60605, USA
David L. HAWKSWORTH
Affiliation:
Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UK; Comparative Plant and Fungal Biology, Royal Botanic Gardens, Kew, Surrey TW9 3DS, UK; Jilin Agricultural University, Changchun, Jilin Province, 130118China
*
R. Lücking (corresponding author): Email: r.luecking@bgbm.org
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Abstract

Cryptolechia carneolutea is the type species of the genus Cryptolechia, a rare taxon classified as endangered in the UK, now largely confined to ancient Fraxinus trees. The only tree with abundant growth of the species in one of its strongholds, the Slapton Ley National Nature Reserve in Devon, was blown over in a storm in April 2017, making it possible to collect material for molecular studies and transplant specimens to other Fraxinus trees in the area. The results of the phylogenetic analysis revealed C. carneolutea to be nested within the genus Gyalecta (Gyalectaceae). This further supports a broad circumscription of Gyalecta, after also including species previously placed in Belonia and Pachyphiale as proposed in other recent studies. It might be possible to introduce an alternative genus concept in Gyalectaceae, not schematically based on ascoma type and ascospore number, but presently not enough data are available to proceed with such a novel classification. A review of the taxonomic concept of Cryptolechia demonstrates that this name was used inconsistently in the past, and its possible inclusion in Gyalecta was anticipated by other authors. As the majority of species presently classified in Cryptolechia had been placed in Gyalecta before, only five new combinations are required to provide formal inclusion of all taxa in the latter genus: Gyalecta bicellulata (Kalb) D. Hawksw. & Lücking comb. nov., G. caudata (Kalb) D. Hawksw. & Lücking comb. nov., G. pittieriana (Kalb et al.) D. Hawksw. & Lücking comb. nov., G. saxatilis (Vězda) D. Hawksw. & Lücking comb. nov. and G. stellaris (Müll. Arg.) D. Hawksw. & Lücking comb. nov. We also supersede the previous lectotypification of Parmelia carneolutea Turner with the discovery of the holotype specimen in BM.

Keywords

DevonFraxinusGyalecta canariensisSlapton Ley National Nature Reserve
Type
Articles
Information
The Lichenologist , Volume 51 , Issue 4 , July 2019 , pp. 287 - 299
Copyright
Copyright © British Lichen Society 2019 

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